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Finding the Fourth Proportional to 9,325.88, 12,843.60 and 7,739.36

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Solution

The fourth proportional to 9,325.88, 12,843.60 and 7,739.36 is: 10,658.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,325.88 : 12,843.60 = 7,739.36 : x
  2. Step 2: Convert to fraction form
    9,325.88/12,843.60 = 7,739.36/x
  3. Step 3: Cross multiply
    9,325.88x = 12,843.60 × 7,739.36
  4. Step 4: Simplify right side
    9,325.88x = 99,401,244.10
  5. Step 5: Solve for x
    x = 99,401,244.10/9,325.88
  6. Step 6: Final answer
    x = 10,658.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.